@article{SM_1994_79_2_a3,
     author = {I. G. Tsar'kov},
     title = {On global existence of an~implicit function},
     journal = {Sbornik. Mathematics},
     pages = {287--313},
     year = {1994},
     volume = {79},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1994_79_2_a3/}
}